CN219201694U

CN219201694U - Circuit board noise testing device

Info

Publication number: CN219201694U
Application number: CN202223583565.6U
Authority: CN
Inventors: 吕尚哲
Original assignee: Xuguang Enterprise Development Shanghai Co ltd
Current assignee: Xuguang Enterprise Development Shanghai Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-16
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a circuit board noise testing device, and relates to the technical field of testing devices. The utility model comprises the following steps: the metal test box, the metal test box lid of normal running fit in metal test box one side, install a plurality of elasticity telescopic links in metal test box inner wall bottom, install a test board in a plurality of elasticity telescopic link tip, install three test plug on the test board, install the connecting wire in metal test box one side, test table and the power that are connected with the connecting wire. The utility model can facilitate the user to place the circuit board on the test board through the arranged test board so as to be connected with the test plug on the test board to test the circuit board, reduce the trouble of manually plugging and unplugging the plug, improve the test efficiency of the circuit board, and can be matched with the metal test box cover to seal when testing the circuit board through the arranged metal test box so as to shield the test environment of the circuit board.

Description

Circuit board noise testing device

Technical Field

The utility model belongs to the field of testing devices, and particularly relates to a circuit board noise testing device.

Background

The circuit board is one of important parts of electronic products, has the advantages of high reliability, good consistency, high mechanical strength, light weight, small volume, easy standardization and the like, and has been widely applied to electronic products such as electronic watches, calculators, computers, communication equipment, set top box systems and the like. Therefore, in the development process of electronic products, one of the most basic factors affecting the quality of the electronic products is a circuit board. The circuit board is required to be subjected to strict test in the production process to ensure the quality, and the whole circuit board is tested simultaneously in order to improve the test efficiency.

When the circuit board is tested for noise, the circuit board needs to be placed in the metal box body, so that the effects of shielding noise and signals are achieved, and when the circuit board is tested, a plug needs to be manually inserted into the circuit board, such as a link [ https:// www.bilibili.com/video/BV12Y411N7fm/? As shown in the spm_id_from=333.337.search-card.all.click & vd_source=2a ffb723 777c60dd902549dfe6 video, the plugging process is troublesome, and the efficiency of circuit board testing is reduced.

The present utility model has been made in view of this.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a circuit board noise testing device.

In order to solve the technical problems, the utility model adopts the basic conception of the technical scheme that:

a circuit board noise testing device, comprising: the device comprises a metal test box, a metal test box cover which is in rotary fit with one side of the metal test box, a plurality of elastic telescopic rods which are arranged at the bottom of the inner wall of the metal test box, a test board which is arranged at the end parts of the plurality of elastic telescopic rods, three test plugs which are arranged on the test board, a connecting wire which is arranged at one side of the metal test box, a test meter which is connected with the connecting wire and a power supply;

one end of the connecting wire penetrates through an elastic telescopic rod of the connecting wire and is connected with a test plug positioned in the middle of the test board, the other two test plugs are connected with load modules, and the load modules are positioned in the elastic telescopic rod.

Optionally, soundproof cotton is installed to metal test box inner wall bottom, has seted up the through-hole with elasticity telescopic link one-to-one on the soundproof cotton.

Optionally, the elastic telescopic rod comprises a fixed cylinder penetrating through the through hole and connected with the bottom of the metal test box, a movable cylinder in the fixed cylinder in sliding fit, and a first spring arranged in the fixed cylinder, wherein the movable cylinder is fixedly connected with the test plate.

Optionally, limiting blocks are respectively arranged on two opposite sides of the inner wall of the fixed cylinder, limiting grooves are respectively arranged on two opposite sides of the inner wall of the movable cylinder, and the limiting blocks are positioned in the limiting grooves.

Optionally, a plurality of wire grooves are offered to one side of metal testing box, and the recess has been offered to wire groove inner wall bottom, and the channel that is linked together with the recess has all been offered to wire groove inner wall opposite both sides, and sliding fit has the baffle in the wire groove of crossing, and sliding fit's lug in the channel has all been installed to the opposite both sides of baffle, has installed a plurality of second springs between recess inner wall bottom and the baffle.

Optionally, one side of the metal test box cover is provided with extruded cotton, and the extruded cotton corresponds to the test board.

After the technical scheme is adopted, compared with the prior art, the utility model has the following beneficial effects, and of course, any product for implementing the utility model does not necessarily need to achieve all the following advantages at the same time:

through the test board that sets up, can be convenient for the user place the circuit board on the test board, thereby be connected with the test plug on the test board, test the circuit board, reduce the trouble of manual plug, improve the efficiency of circuit board test, through the metal test box that sets up, can cooperate with the metal test box lid when testing the circuit board, seal, thereby shield the test environment of circuit board, through the elastic telescopic link that sets up, can shrink when the circuit board receives the extrusion, thereby reduce the damage that causes the circuit board.

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.

Drawings

The drawings in the following description are only examples of embodiments from which other drawings may be derived by those skilled in the art without the exercise of inventive faculty. In the drawings:

FIG. 1 is a schematic diagram of a metal test cartridge according to an embodiment of the present utility model;

FIG. 2 is a schematic view of an acoustic baffle according to an embodiment of the present utility model;

FIG. 3 is a schematic view of an elastic telescopic rod according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a wire-through slot according to an embodiment of the utility model;

FIG. 5 is a schematic view of a baffle structure according to an embodiment of the present utility model;

in the drawings, the list of components represented by the various numbers is as follows:

the test box comprises a metal test box 1, a metal test box cover 2, an elastic telescopic rod 3, a test plate 4, a test plug 5, a connecting wire 6, soundproof cotton 7, a through hole 8, a fixed cylinder 9, a movable cylinder 10, a first spring 11, a limiting block 12, a limiting groove 13, a wire passing groove 14, a groove 15, a groove channel 16, a baffle 17, a convex block 18, a second spring 19 and extruded cotton 20.

It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.

Detailed Description

The utility model will now be described in further detail with reference to the accompanying drawings.

Referring to fig. 1-5, in this embodiment, a circuit board noise testing apparatus is provided, which includes: the metal test box comprises a metal test box 1, a metal test box cover 2 which is in rotary fit with one side of the metal test box 1, a plurality of elastic telescopic rods 3 which are arranged at the bottom of the inner wall of the metal test box 1, a test board 4 which is arranged at the end parts of the plurality of elastic telescopic rods 3, three test plugs 5 which are arranged on the test board 4, a connecting wire 6 which is arranged on one side of the metal test box 1, a test meter which is connected with the connecting wire 6 and a power supply;

one end of the connecting wire 6 penetrates through an elastic telescopic rod 3 of the connecting wire and is connected with a test plug 5 positioned in the middle of the test board 4, the other two test plugs 5 are connected with load modules, and the load modules are positioned in the elastic telescopic rod 3. The model of the test meter is ZPD0228 in the prior art, one end of the connecting wire 6 is provided with two plugs, one plug-in head is connected with the test meter, and the connecting wire 6 is provided with a control switch.

The application of one aspect of the embodiment is: when testing the circuit board, the circuit board to be tested is placed on the test board 4, an interface on the circuit board is connected with the three test plugs 5, the metal test box cover 2 is turned over, the metal test box 1 is matched with the metal test box cover 2, the circuit test board is sealed, the metal test box 1 or the metal test box cover 2 is knocked, and the test meter is connected with the circuit board through the connecting wire 6 to test the circuit board.

The soundproof cotton 7 is installed to metal test box 1 inner wall bottom of this embodiment, has seted up the through-hole 8 with elastic telescopic link 3 one-to-one on the soundproof cotton 7. Through the soundproof cotton 7 that sets up, can give sound insulation to the bottom of metal test box 1.

The elastic telescopic rod 3 of the embodiment comprises a fixed cylinder 9 penetrating through the through hole 8 and connected with the bottom of the metal test box 1, a movable cylinder 10 in sliding fit in the fixed cylinder 9, and a first spring 11 arranged in the fixed cylinder 9, wherein the movable cylinder 10 is fixedly connected with the test board 4. Through the movable cylinder 10 that sets up, can drive the movable cylinder 10 and retract in the fixed cylinder 9 when test board 4 receives the extrusion to extrude first spring 11, thereby reduce test board 4 and receive the extrusion and cause the condition of damage.

Limiting blocks 12 are respectively arranged on two opposite sides of the inner wall of the fixed cylinder 9 in the embodiment, limiting grooves 13 are respectively arranged on two opposite sides of the inner wall of the movable cylinder 10, and the limiting blocks 12 are positioned in the limiting grooves 13. The limit groove 13 can be matched with the limit block 12, so that the situation that the movable cylinder 10 is separated from the fixed cylinder 9 is reduced.

A plurality of wire passing grooves 14 are formed in one side of the metal test box 1 in the embodiment, grooves 15 are formed in the bottom of the inner wall of the wire passing grooves 14, grooves 16 communicated with the grooves 15 are formed in two opposite sides of the inner wall of the wire passing grooves 14, baffles 17 are slidably matched in the wire passing grooves 14, protruding blocks 18 which are slidably matched in the grooves 16 are arranged on two opposite sides of the baffles 17, and a plurality of second springs 19 are arranged between the bottom of the inner wall of the grooves 15 and the baffles 17. Through the wire passing groove 14 that sets up, can be convenient for when the user needs to carry out other tests to the circuit board, can pass the test wire through wire passing groove 14 to provide the elasticity to baffle 17 through second spring 19 and extrude the test wire in the wire passing groove 14, seal to wire passing groove 14.

One side of the metal test box cover 2 of the embodiment is provided with extruded cotton 20, and the extruded cotton 20 corresponds to the test board 4. Through the extrusion cotton 20 that sets up, can be convenient for the user when overturning metal test lid 2, make the extrusion cotton 20 extrude the circuit board to reduce the condition of not hard up between circuit board and the test plug 5.

The present utility model is not limited to the above embodiments, and any person who can learn the structural changes made under the teaching of the present utility model can fall within the scope of the present utility model if the present utility model has the same or similar technical solutions. The technology, shape, and construction parts of the present utility model, which are not described in detail, are known in the art.

Claims

1. A circuit board noise testing device, comprising: the metal test box comprises a metal test box body (1), a metal test box cover (2) which is in rotary fit with one side of the metal test box body (1), a plurality of elastic telescopic rods (3) which are arranged at the bottom of the inner wall of the metal test box body (1), a test board (4) which is arranged at the end parts of the plurality of elastic telescopic rods (3), three test plugs (5) which are arranged on the test board (4), a connecting wire (6) which is arranged at one side of the metal test box body (1), a test meter which is connected with the connecting wire (6) and a power supply;

one end of the connecting wire (6) penetrates through an elastic telescopic rod (3) of the connecting wire and is connected with a test plug (5) positioned in the middle of the test board (4), the other two test plugs (5) are connected with load modules, and the load modules are positioned in the elastic telescopic rod (3).

2. The circuit board noise testing device according to claim 1, wherein the bottom of the inner wall of the metal testing box (1) is provided with soundproof cotton (7), and through holes (8) corresponding to the elastic telescopic rods (3) one by one are formed in the soundproof cotton (7).

3. The circuit board noise testing device according to claim 2, wherein the elastic telescopic rod (3) comprises a fixed cylinder (9) penetrating through the through hole (8) and connected with the bottom of the metal testing box (1), a movable cylinder (10) in sliding fit with the fixed cylinder (9), and a first spring (11) arranged in the fixed cylinder (9), wherein the movable cylinder (10) is fixedly connected with the testing board (4).

4. A circuit board noise testing device according to claim 3, wherein limiting blocks (12) are arranged on two opposite sides of the inner wall of the fixed cylinder (9), limiting grooves (13) are arranged on two opposite sides of the inner wall of the movable cylinder (10), and the limiting blocks (12) are located in the limiting grooves (13).

5. The circuit board noise testing device according to claim 1, wherein a plurality of wire passing grooves (14) are formed in one side of the metal testing box (1), grooves (15) are formed in the bottoms of the inner walls of the wire passing grooves (14), grooves (16) communicated with the grooves (15) are formed in the opposite sides of the inner walls of the wire passing grooves (14), baffles (17) are slidably matched in the wire passing grooves (14), protruding blocks (18) which are slidably matched in the grooves (16) are arranged on the opposite sides of the baffles (17), and a plurality of second springs (19) are arranged between the bottoms of the inner walls of the grooves (15) and the baffles (17).

6. The circuit board noise testing device according to claim 1, wherein one side of the metal testing box cover (2) is provided with extruded cotton (20), and the extruded cotton (20) corresponds to the testing board (4).